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  1. en.wikipedia.org › wiki › Vitamin_B12Vitamin B12 - Wikipedia

    Vitamin B12, also known as cobalamin, is a water-soluble vitamin involved in metabolism. [2] It is one of eight B vitamins. It is required by animals, which use it as a cofactor in DNA synthesis, and in both fatty acid and amino acid metabolism. [3]

  2. en.wikipedia.org › wiki › B_vitaminsB vitamins - Wikipedia

    B vitamins are a class of water-soluble vitamins that play important roles in cell metabolism and synthesis of red blood cells. [1] They are a chemically diverse class of compounds; some contain sulfur and B12 contains cobalt. [1] Dietary supplements containing all eight are referred to as a vitamin B complex.

  3. Pernicious anemia is a disease where not enough red blood cells are produced due to a deficiency of vitamin B 12. [5] . Those affected often have a gradual onset. [5] . The most common initial symptoms are feeling tired and weak. [4] .

  4. en.wikipedia.org › wiki › VitaminVitamin - Wikipedia

    Vitamins are organic molecules (or a set of closely related molecules called vitamers) that are essential to an organism in small quantities for proper metabolic function. Essential nutrients cannot be synthesized in the organism in sufficient quantities for survival, and therefore must be obtained through the diet. For example, vitamin C can ...

  5. en.wikipedia.org › wiki › Vitamin_DVitamin D - Wikipedia

    D014807. Legal status. In Wikidata. Vitamin D is a group of fat-soluble secosteroids responsible for increasing intestinal absorption of calcium, magnesium, and phosphate, and for many other biological effects. [1] [2] [3] In humans, the most important compounds in this group are vitamin D 3 ( cholecalciferol) and vitamin D 2 ( ergocalciferol ).

  6. Vitamin B12 deficiency Vitamin B12 total synthesis This page was last edited on 7 September 2019, at 03:49 (UTC). Text is available under the Creative Commons Attribution-ShareAlike License 4.0; additional terms may apply. By using this site, you agree to ...

  7. en.wikipedia.org › wiki › Vitamin_B6Vitamin B6 - Wikipedia

    Vitamin B6 - Wikipedia. Contents. hide. (Top) Definition. Synthesis. Functions. Medical uses. Dietary recommendations. Sources. Absorption, metabolism and excretion. Deficiency. History. Research. References. External links. Vitamin B 6. Vitamin B6 is one of the B vitamins, and thus an essential nutrient.

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